While being this is portable and very thorough, caution when using this. First of all, it terribly needs a backup option which if there is one, I couldn't find it. Preview first, yes, but backup still needed. It selects all drives by default, may or may not concern you or apply to anything bad but would watch for that as well. These things need to be changed for an in depth cleaner.
Aside from that, it's actually very fast and thorough.
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